missing header in soapui

Hi

I am trying to test a web service using soapui for my Loadservice. I have created a test case and tested. But I am getting

<ms:message>Missing  operation name header</ms:message>

I have added the header X-TURMERIC-OPERATION-NAME with value notify in soapui for the testcase( in header section located at the bottom of testcase). But it doesnot taking the operation name. In response I am getting X-TURMERIC-OPERATION-NAME is null.

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" 
 xmlns:not="http://wwww.travel.com/integration/LoadService">

<soapenv:Header/>
<soapenv:Body>
  <not:getVersionRequest>

  </not:getVersionRequest>
</soapenv:Body>
</soapenv:Envelope>